Jacquard mechanism for looms.



H. DEERING.

JACQUARD MECHNISM FOR LOOMS.

' APPLICATION FILED MAR. 29, 1907.

53,37% Patented Mar.29,1910.

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HENRY DEERING, OF PROVIDENCE, RHODE ISLAND, ASSIGNOR T0 CROIVIPTON 8cKNOWLES LOOM WORKS, A CORPORATION 0F MASSACHUSETTS.

JACQUARD IVIECHANISM FOR LOOMS.

Specification of Letters Patent.

Patented Mar. 29, 1910.

Application filed March 29, 1907. Serial No. 365,231.

T o all 'whom '11 'may concern.'

Be it known that I, HENRY DEERING, a citizen of the United States,residing at Providence, in the county of Providence and State of RhodeIsland, have invented certain new and useful Improvements in JacquardMechanism for Looms, of which the follow ing is a specification.

My invention relates to a acquard mechanism for looms, and to a twocylinder jacquard mechanism for weaving cross bordered or headedfabrics, such as carpet squares, and shawls, or fabrics with twopatterns, and my invention particularly relates to the operatingmechanism for the two pattern card cylinders of the jacquard. of theclass referred to, and shown and described in U. S. Letters Patent, No.682,115.

The object of my invention is to provide an improved mechanism forautomatically controlling` the operation of the pattern card cylindersat a predetermined time.

Wy invention consists in certain novel features of construction of myimprovements as will be hereinafter fully described.

I have only shown in the drawing a detached portion of a jacquardmachine of the class referred to, having mechanism embodying myimprovements for operating the two cylinders of the acquard, suliicientto enable those skilled in the art to understand the construction andoperation thereof.

The drawing is a side view or elevation of a part of a jacquard machineof the class referred to, having my improvements applied thereto.

In the accompanying drawing, 1 is one end or side frame of the acquard,secured on the cross timber 2 in the usual way. 3 and l are the twopattern card cylinders arranged on the same side of the jacquard, andeach adapted to act on its respective set of jacquard needles anduprights, not shown. The two cylinders 8 and 4L are mounted respectivelyupon the ends of the horizontally extending rods 5 and 6, each of whichis mounted to have a reciprocating movement in bearings 1 on theframe 1. rIhe operating lever 7 for the cylinders 3 and 4, is mounted ona shaft 8 on the stand 9, and is connected with and operated by a movingpart of the loom, not shown. All of the above mentioned parts may be ofthe usual and well known construction in the class of jacquards referredto.

I will now describe my improvements in the mechanism for operating thetwo pattern card cylinders 3 and 4C.

A horizontally extending rod 10 is mounted in bearings 1 on the endframe 1, to have a reciprocating motion, and has fastthereon the hub 11of a plate or casting 11. On the hub 11 of the plate 11 is a stud 12,which is connected by a rod or connector 13 to the operating lever 7.The lever 7 is constantly in motion while the loom is running, andtherefore the plate 11 and rod 10 will have a constant reciprocatingmotion. The lower end of the plate 11 has a stud 141 thereon, on whichis mounted a hook or pawl 15. A helically coiled tension spring 16,attached to an extension 15 on the pawl 15, and to a pin on the plate11, acts to move downwardlysaid pawl. The upper end of the plate 11 hasa stud 17 thereon, on which is mounted a hook or pawl 18. A helicallycoiled tension spring 19 is attached at one end to the hook or pawl 18,andat its other end to a stud on the plate 11, and acts to draw downsaid hook or pawl 18.

Extending transversely through the jacquard frame, at the end thereof,is a shaft 20, mounted in suitable bearings 1 on the end frame 1, andhaving fast thereon the yoked shaped arm 21. The lower arm 21 of saidarm 21 extends under and is adapted to engage a pin 15 on the lower hookor pawl 15. The upper arm 21 of the arm 21 extends over and is adaptedto engage a pin 18 on an arm 18 on the upper pawl 18. The rocking of thearm 21 in one direction will cause the lower pawl 15 to be raised, andallow the upper pawl 18 to be lowered, and the rocking of the arm 21 inthe other direction, will allow the lower pawl 15 to be lowered andcause the upper pawl to be raised. On the reciprocating cylinder rod 5is a pin 22, which extends into and travels in an elongated slot 11 inan extension on the lower end of the plate 11. On the reciprocatingcylinder rod 6 is a pin 23, which extends into and travels in anelongated slot 11 in an extension on the upper end of the plate 11. Ahelically coiled expansion spring 24 encircles the lower cylinder rod 5,and acts to move it in one direction, and a helically coiled expansionspring 25 encircles the upper cylinder rod 6, and acts to move it in onedirection. rIhe lower pawl 15 is adapted to engage the pin 22 on thecylinder rod 5, to move said cylinder rod, and with it the pattern chaincylinder 3 in one direction, and the upper hook 18 is adapted to engagethe pin 23 on the cylinder rod 6, to move said rod and the pattern chaincylinder 4 in one direction. On the reciprocating rod 10, carrying theplate 11, is fast a hub 26 having an arm 26 carrying a pin 27, whichextends into and travels in an elongated opening 28 in an arm 28, ,whichis pivotally mounted at its lower end on a stud 29. A pawl 30 ispivotally mounted at its upper end on a stud 31 on the arm 28, and isadapted to engage the teeth of a ratchet wheel 32, to turn said ratchetwheel one-eighth of its revolution at every movement of the pawl 30.

The ratchet wheel 32 is connected with and operates a pattern chain orcylinder carrying a pattern chain 33, made up of high links 33', and lowlinks 33, in the usual way. On the stud 29 is loosely mounted one end ofa lever 34, which extends over and is adapted to be engaged by thepattern chain 33. The other end of the lever 34 is connected by anadjustable link 35 with the lower arm 21 of the arm 21. When a low link33 on the pattern chain 33 passes under the lever 34, the arm 21 will berocked or moved downwardly, thus allowing the hook or lower pawl 15 tobe dropped, and causing the.upper pawl 18 to be raised. The lowering` ofthe lower hook 15 allows it to engage the pin 22 on the rod 5 of thelower cylinder 3, so that the movement of the plate 11, through themovement of the lever 7, will move the rod 5 and cylinder 3. The raisingof the pawl 18 will move it out of the path of the pin 23 on the rod 6,leaving said rod 6 and pattern card cylinder 4 stationary. When a highlink ,33 on the pattern chain 33 comes under the lever 34, said leverwill be raised, and through link 35 the arm 21 will be raised, causingthe pawl 15 to be raised out of the path of the pin 23, and leaving therod 5 and the pattern chain cylinder 3 at rest; the raising of the arm21 will allow the spring 19 to act to move the pawl 18 down into thepath of the pin 23 on the rod 6, to engage and move said rod 6 and thepattern card cylinder 4, through the movement of the plate 11, connectedto the lever 7. It will thus be seen, that the pattern cylinders 3 and 4are operated alternately, according to the indications of the patternchain 33.

ln connection with the pattern chain 33 and the pawl 30, I preferablyuse a lever 36, pivotally mounted on the stud 29, and having anextension 36 which is attached at one end to a helically coiledexpansion spring 37 the other end 0f said spring is attached to a stud38 on the loom frame 1.

The lever 36 extends under and is adapted to engage a pin 30 on the pawl30. To the end of the lever 36 is attached one end of a cord orconnector v39, which passes around the guide sheave 40, and is attachedto an upright of the jacquard, not shown. The lever 36 in its normalposition is raised by the spring 37, and through engagement with t-hepin 30 on t-he pawl 30, raises said pawl and holds it out of engagementwith the ratchet wheel 32, but when the upright of the jacquard, notshown, through the cord 39, draws downwardly the Alever 36, against theaction of the spring 37, the pawl 30 is allowed to drop down to engagethe ratchet wheel 32 and rotate the same, and also the pattern chain 33.

The advantages of my improvements will be readily appreciated by thoseskilled in the art, they are of simple construction, and are adapted tobe applied t0 and used on jacquards of any ordinary construction.

Having thus described my invention, what I claim as new and desire tosecure by Let" ters Patent is 1. In a jacquard mechanism, thecombination with two pattern cylinders, cylinder rods, and a singlelever' for operating said rods and cylinders, of mechanism intermediatesaid lever and rods, for operating said rods and cylindersindependently, said mechanism comprising a plate fast on a reciprocatingshaft, and said shaft, and connections intermediate said shaft and apattern chain or surface, to operate said pattern chain, and saidpattern chain, and connections intermediate said pattern chain and amovable or rocking arm, and said arm, adapted to operate two hooks orpawls, and said hooks or pawls mounted on said plate, one of said pawlsadapted to be moved into and out of engagement with one cylinder rod,and the other of said pawls adapted to be moved into and out ofengagement with the other cylinder rod, to cause the movement of saidrods and the pattern cylinders attached thereto, one rodvand cylinder ata time.

2. In a jacquard mechanism, the combination with two pattern cylinders,cylinder rods, and a single lever for operating said rods and cylinders,of mechanism intermediate said lever and rods for operating said rodsand cylinders independently, said mechanism comprising a plate fast on areciprocating shaft, and said shaft, and connections intermediate saidshaft and a pattern chain or surface, to operate said pattern chain, andsaid pattern chain, and connections intermediate said pattern chain anda movable or rocking arm, and said arm adapted to operate two hooks orpawls, and said hooks or pawls mounted on said plate, one of said pawlsadapted to be moved into and outof engagement with one l trolling theoperation of the pattern chain cylinder rod, and the other of Said paWlsor surface.

adapted to be moved into and out of enga ement With the other Cylinderrod7 to cailse HENRY DEERING' the movement of said rods and the patternWitnesses:

cylinder attached thereto, one cylinder at a H. S. FAVOR,

time, and mechanism for automatically con- 4 E. NISBET.

